def test_get_donor():
# Test that donors can be retrieved from collection
dc = DonorCollection()
dc.updateDonor('Jason Mendoza', 100.)
d = dc.getDonor('Jason Mendoza')
assert isinstance(d, Donor)
assert d.name == 'Jason Mendoza'
assert d.lastDonation() == 100.
# Should return new donor if donor does not exist
d = dc.getDonor('New Donor')
assert isinstance(d, Donor)
assert d.name == 'New Donor'
def test_update_donor():
# Tests that new donor can be added and updated
dc = DonorCollection()
dc.updateDonor('Jason Mendoza', 100.)
dc.updateDonor('Jason Mendoza', 200.)
d = dc.getDonor('Jason Mendoza')
assert d.lastDonation() == 200.
assert d.totalDonations() == 300.
assert d.numDonations() == 2
assert d.averageDonation() == 150.
